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Finding the Fourth Proportional to 493,529.20, 740,466.60 and 213,247.60

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Solution

The fourth proportional to 493,529.20, 740,466.60 and 213,247.60 is: 319,946.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,529.20 : 740,466.60 = 213,247.60 : x
  2. Step 2: Convert to fraction form
    493,529.20/740,466.60 = 213,247.60/x
  3. Step 3: Cross multiply
    493,529.20x = 740,466.60 × 213,247.60
  4. Step 4: Simplify right side
    493,529.20x = 157,902,725,330.16
  5. Step 5: Solve for x
    x = 157,902,725,330.16/493,529.20
  6. Step 6: Final answer
    x = 319,946.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.